This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and thus not compensated for and can lean the engine out and can furthermore allow the engine to rev stirring similar to not desired causing scratchy running. As its a mechanical malfunction it tends not to face upon the idiosyncrasy fresh and you can sometimes listen a hissing noise afterward the engine running.
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Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me say you a little more nearly the hardship history. It currently has a master tech certified idle air manage valve and tps installed. without disturbing anything, the last (used) ecu and my original, would direct in the car without this symptom.
Hello the TPS does have an effect on switching the car into idle mode in view of that I'd suggest to make clear the throttle dish is 100% closed and not slightly high and dry when carbon. and subsequently become accustomed the TPS appropriately that the IDL fix is continuous to the E2 pin taking into consideration the throttle is closed, and read circuit with the throttle is just cracked. Don't worry not quite any voltages, the IDL door is the in reality important one.
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